A systematic theory of the asymptotic expansion of the magnetohydrostatics (MHS) equilibrium in the distance from the magnetic axis is developed to include arbitrary smooth currents near the magnetic axis. Compared with the vacuum and the force-free system, an additional magnetic differential equation must be solved to obtain the pressure-driven currents. It is shown that there exist variables in which the rest of the MHS system closely mimics the vacuum system. Thus, a unified treatment of MHS fields is possible. The mathematical structure of the near-axis expansions to arbitrary order is examined carefully to show that the double-periodicity of physical quantities in a toroidal domain can be satisfied order by order. The essential role played by the leading-order Birkhoff–Gustavson normal form in solving the magnetic differential equations is highlighted. Several explicit examples of vacuum, force-free and MHS equilibrium in different geometries are presented.

Jellyfishes have ecological and societal value, but our understanding of taxonomic identity of many jellyfish species remains limited. Here, an approach integrating morphological and molecular (16S ribosomal RNA and cytochrome oxidase I) data enables taxonomic assessment of the blubber jellyfish found in the Philippines. In this study, we aimed to resolve doubt on the taxonomy of Acromitoides purpurus, a valid binomen at the time of our research. Our morphological findings confirm that this jellyfish belongs to the genus Catostylus, and is distinct from known species of the genus inhabiting the Western Pacific, such as Catostylus ouwensi, Catostylus townsendi, and Catostylus mosaicus. Detailed morphological and molecular analyses of the type specimens from the Philippines with the other Catostylus species revive the binomen Catostylus purpurus and invalidate A. purpurus. Genetic analysis also distinguishes this Philippine jellyfish from C. townsendi and C. mosaicus. Through this study, we arranged several Catostylidae taxa into species inquirendae (Catostylus tripterus, Catostylus turgescens, and Acromitoides stiphropterus) and one genus inquirenda (Acromitoides) and provided an identification key for species of Catostylus. This comprehensive study confirms the blubber jellyfish as C. purpurus, enriching our understanding of jellyfish biodiversity. The integration of morphological and genetic analyses proves vital in resolving taxonomic ambiguities within the Catostylidae family and in the accurate identification of scyphozoan jellyfishes.

In contemporary Italy, media and public actors frame the exploitation of migrant agricultural labourers as the outcome of caporalato. This concept – translated as labour brokerage or gang mastery – connotes the violent treatment of workers and their exploitation by powerful individuals, who are today increasingly racialised and understood as being Black and immigrants. However, our fieldwork in Apulia and Sicily uncovered a more complicated picture. This article considers a variety of sources to explore how caporalato is constructed and to what effect. Our argument is that, though rooted in real dynamics, caporalato is also a reductive, sensationalised, and racialising framing device that transposes historic tenets of Italy's ‘Southern Question’ onto ‘othered’ migrant workers. It affects policy by creating categories of people who are made ‘illegal’ and ‘deportable’. In also reinforcing derogatory stereotypes about the Italian South, it makes visible further South(s) of the Italian South(s) – offering insight into how and where borders are created and what their effects are.

Prenatal maternal anxiety is considered a risk factor for the development of child internalizing problems. However, little is known about potential mechanisms that account for these associations. The current study examined whether prenatal maternal anxiety was indirectly associated with toddler internalizing problems via prenatal maternal physiology and infant negative affectivity. We examined these associations in a longitudinal study of 162 expectant mothers from their third trimester until 18 months postpartum. Path analyses showed that higher prenatal anxiety was associated with higher infant negative affectivity at 7 months, which in turn was associated with higher toddler internalizing problems at 18 months. Prenatal anxiety was not indirectly associated with child outcomes via baseline or task-evoked respiratory sinus arrhythmia (RSA) in response to an infant cry while pregnant. However, pregnant women with greater decreases in task-evoked RSA had toddlers with greater internalizing problems, which was mediated by infant negative affectivity at 7 months. Findings suggest that prenatal anxiety and RSA reactivity to an infant cry may be independent risk factors for the development of infant negative affectivity, which in turn increases risk for toddler internalizing problems. These findings contribute to a growing literature on mechanisms that underlie intergenerational transmission of internalizing problems.

Little is known about the Chondrichthyes fauna of the state of Espírito Santo, southeastern Brazil, notably on the species composition, distribution, and biology. Historically, only a few studies have focused on these issues. Basic taxonomy is one of the main tools employed in cataloguing, organizing, and initiating other, more specific, assessments regarding regional diversity. In this context, this study presents the most comprehensive list of shark and ray species occurring in the state of Espírito Santo to date. The compiled data were obtained from specimens deposited in ichthyological collections, literature reviews, and samplings conducted at fisheries landings and onboard commercial fleet vessels. The findings indicate 79 species, comprising 51 sharks and 28 rays. A total of 53.2% of threatened Brazilian marine elasmobranch species occur in the area, indicating the importance of carrying out local studies focusing on this group. A first record for the Brazilian large-eyed stingray, Hypanus marianae, was also observed for the state, increasing the southern limit of the species known distribution, previously considered restricted to the North and Northeast coasts.

A popular explanation for America's democratic ills is that Republicans and Democrats misperceive one another to hold extreme attitudes. However, Americans may also misperceive the diversity of partisans’ attitudes to ill effect. This paper uses surveys and pre-registered experiments with representative and convenience samples (n = 9405) to validate a measure of perceived attitude extremity and diversity and compare it to canonical measures of perceived polarization. We find that American partisans vastly under-estimate the diversity of each party's attitudes. Yet, contrary to existing research, we see little evidence that partisans over-estimate how extreme the “average” Republican or Democrat is. Finally, perceptions of both the “average” partisan and within-party attitude diversity predict partisan animosity and perceptions of out-party threat.

Soft robotic devices are designed for applications such as exploration, manipulation, search and rescue, medical surgery, rehabilitation, and assistance. Due to their complex kinematics, various and often hard-to-define degrees of freedom, and nonlinear properties of their material, designing and operating these devices can be quite challenging. Using tools such as optimization methods can improve the efficiency of these devices and help roboticists manufacture the robots they need. In this work, we present an extensive and systematic literature search on the optimization methods used for the mechanical design of soft robots, particularly focusing on literature exploiting evolutionary computation (EC). We completed the search in the IEEE, ACM, Springer, SAGE, Elsevier, MDPI, Scholar, and Scopus databases between 2009 and 2024 using the keywords “soft robot,” “design,” and “optimization.” We categorized our findings in terms of the type of soft robot (i.e., bio-inspired, cable-driven, continuum, fluid-driven, gripper, manipulator, modular), its application (exploration, manipulation, surgery), the optimization metrics (topology, force, locomotion, kinematics, sensors, and energy), and the optimization method (categorized as EC or non-EC methods). After providing a road map of our findings in the state of the art, we offer our observations concerning the implementation of the optimization methods and their advantages. We then conclude our paper with suggestions for future research.

This paper, with a focus on the status of tsunami disaster victims affected by the 2011 East Japan Earthquake, investigates into the status of private property rights in facing with the reviving legal instrumentalism in Japan, under the campaign of land law reform for the elimination of “land without identifiable owners” in the name of facilitating the disaster recovery, by means of the “special zone” method or the designation of lawless areas where the normal time law is excluded, with the particularly targeted area for such exclusion being the constitutional requirements of due process and fair compensation in public taking. Under the extraordinary setting of absolute majority of conservative party at the National Diet in the aftermath of the 2011 great disaster, legislations in Japan during this decade have been characterized by a manifestation of neo-liberal policy, driving the entire Japanese legal system into a corner. Facts observed in present Japanese society are not different from those observed in other authoritarian regimes in Asia, including the phenomenon of “land grabbing” by the governmental projects, which Asia once experienced a century ago for the colonial land enclosure by “wasteland management.”

Crises create opportunities for policy change, yet the extent to which they encourage redistribution is under-researched. We adopt a narrative approach to study how crisis frames are mobilised to support or oppose redistribution, and whether that redistribution is progressive or regressive. A typology of crisis narratives with different redistributive implications is presented: retrenchment narratives promote deregulation and cuts to welfare; Robin Hood narratives advocate progressive redistribution with expanded rights; and restoration narratives favour bringing back the status quo ex ante. We apply the Narrative Policy Framework to examine how Australian parliamentarians used the language of ‘housing crisis’ during and after COVID-19. Despite existing research suggesting crisis narratives mostly support retrenchment, Australia’s pandemic housing debates were dominated by Robin Hood and restoration narratives. We show that party ideology matters for the redistributive content of crisis narratives, but the effect of ideology is mediated by incumbency status. We conclude that shifts in the parliamentary balance of power lead to changes in political parties’ rhetorical support for redistribution.

Using evidence from the Sphakia Survey, a multiperiod archaeological project in south-west Crete, this article has two goals. The first is to contribute to a newly emerging field, the archaeology of sustainability. The investigation of sustainability in Sphakia uses five main kinds of evidence: environmental, archaeological/material, textual, oral, and patterns of activity that seem ‘difficult’ or ‘inconvenient’. Sphakia is a large area of highly dissected terrain with a wide altitudinal range – in many ways, a ‘tough’ landscape, where agropastoralism has been its main economy. The second goal is to introduce the concept of a Resource Package (RP), a combination of perceived resources in an area, as an analytical tool for landscape study. Evidence for identifying agropastoral RPs of various scales, used at a particular time, includes imports, such as pottery and obsidian, which can suggest exchange for a local resource or product; sacred sites; coins; texts and inscriptions; place-names and other toponyms; and maps. The concept of RPs can usefully be applied synchronically and diachronically to multiperiod projects like this, as well as more generally to other landscapes, ‘tough’ or not. Sustainable strategies (that is, maximising resources and RPs without exhausting them) were used in the Prehistoric, Graeco-Roman and Byzantine–Venetian–Turkish epochs in Sphakia; some may be relevant for the future.

Long-term marine monitoring programmes have provided numerous quantitative data on the composition of North Sea benthic communities and their changes over time, including species introductions. Particularly in the German Bight, the rapid environmental and hydrographical changes are promoting the spreading (usually anthropogenically mediated) of neobiota, with more than 150 species being registered to date. During routine seafloor monitoring, grab samples taken on the subtidal sandbank of the Borkum Reef Ground revealed the presence of the polychaete Streptosyllis nunezi in different years, a species previously unreported in the southern North Sea. In this paper, these individuals are described morphologically and the population status is discussed. Our finding demonstrates the importance of intensive and regular environmental monitoring programmes for the assessment of regional biodiversity and its potential changes.

Neural tuning for visual words is essential for fluent reading across various scripts. This study investigated the emergence and development of N170 tuning for Chinese characters and its cognitive–linguistic correlates. Electroencephalogram data from 48 adult L2 learners and 23 native Chinese readers were collected using a color detection task. The N170 for real characters, pseudo-characters, false characters, stroke combinations and line drawings were recorded. We found beginner adult L2 learners showed larger N170 Chinese characters compared to stroke combinations (coarse neural tuning). The intermediate-level L2 Chinese learners demonstrated fine-tuning for Chinese orthographic regularities. Importantly, a clear shift from bilateral to left-lateralized coarse and fine-tuning for print was observed from beginner to intermediate L2 learners as their Chinese reading experience increased. Moreover, individual differences in neural print tuning moderately correlated with word-reading fluency, Chinese vocabulary knowledge and morphological awareness.

Contraceptive side effects are consistently given as the main reason why women are dissatisfied with contraception or choose not to use it. However, why some women suffer more from side effects remains unknown. Through inductive analysis of in-depth interviews and focus group discussions with 40 contraceptive users and 3 key informants in Central Oromia, Ethiopia, we explored women’s rationales for variation in side-effect experiences. The data first reveal the wide diversity in type and severity of side-effect experiences reported by users of contraception. Second, we found that women’s rationales for why some individuals suffer more side effects from contraception invoke economic and physical hardship (food insecurity and heavy workloads), as well as interindividual differences in biology (one’s blood must ‘fit’ with contraception). Finally, the analysis revealed the tension many women face in trying to negotiate the trade-off between the consequences of these side effects and those of an unwanted pregnancy. The results show the value of using a biosocial approach, which centres women’s voices and experiences, for informing the measurement of contraceptive side effects within population health surveys and clinical trials. Additionally, the findings help gain an understanding of how an individual’s social, biological, and cultural contexts drive variation in when and why different side effects manifest.